Answer:
9
Step-by-step explanation:
3 x 3 =9 9 divived by 1
9
First computer takes x min. For 1 min it does 1/x part of work.
Second computer takes (x+24) min. For one min it does 1/(x+24) part of work.
Both computers for one min do (1/x+1/(x+24)) part of work.
At the same time, both computers for one min do 1/9 part of work.
Answer:
5
Step-by-step explanation:
5x+15
So let's take them one after the other
5x=1,5,x
15=1,3,5,15
Since 5 is common to the two,So the greatest common factor will be 5
But we can solve further in case we are asked to factorise
5x+15
5(x+3)
So the answer for factorisation is 5(x+3)
Answer:
A standard deck of 52 playing cards contains four of each numbered card 2–10 and four each of aces, kings, queens, and jacks. Two cards are chosen from the deck at random.
Which expression represents the probability of drawing a king and a queen?
StartFraction (4 P 1) (3 P 1) Over 52 P 2 EndFraction
StartFraction (4 C 1) (3 C 1) Over 52 C 2 EndFraction
StartFraction (4 P 1) (4 P 1) Over 52 P 2 EndFraction
StartFraction (4 C 1) (4 C 1) Over 52 C 2 EndFraction
it is D
Step-by-step explanation:
Answer:
x=−2 and y=3/2
Step-by-step explanation:
see picture